Email List Editing and Cleansing

I have an email list of 27,600 names in an excel spreadsheet. I have attached a small sample of the data.

I need to clean-up and re-tag every person in this list. The re-tagging may require some manual work. 25% of the list already has existing tags (you'll see that in the spreadsheet), however I need to re-tag EVERYONE in the list using the categories and tags below.. that's roughly 27,600 contacts... some small percentage of these contacts will not contain enough information to make a judgement... but most will have enough information.

Also, this will likely need to be done manually... someone will need to apply VERY GOOD JUDGEMENT to evaluate the proper tag based on title of the person on the list.

Below are the tags I need assigned to each and every person on the list: